Objects in the image:
category: car
category: car
category: person
category: car
category: bus
category: person
category: person
category: car

Guessing-game dialogue about one of the objects:
q: is it the red bus?
a: No
q: is it a vehicle?
a: Yes
q: is it the vehicle right behind the bus?
a: No
q: is it the 2nd vehicle behind the bus?
a: Yes